Dear Mamdouh Wahab,
"Dennis Saputelli" <[EMAIL PROTECTED]> on 2001-06-03 12:49:18 PM
replied
>we usually insist on having good spec dwgs of the
>parts AND use a calipers for confirmation, but let the dwg take
>precedence unless there are missing or wrong dims on the dwgs (which
>there generally are)
>Dennis Saputelli
I agree. Mechanical drawings (ought to) list maximum and minimum hole sizes and
other tolerances. It is impossible to measure these tolerances with callipers
when you only have one physical sample -- the calipers merely check whether or
not that sample falls within the stated tolerance.
Still, physical samples are very handy to have.
Often I see mechanical specifications that only list 1 reference point on a
connector. Then I have to go to the connector manufacturer to get all the little
details of that connector. Connector manufacturers are putting more and more
stuff online these days.
http://www.molex.com/
http://amp.com/
http://www.conxall.com/
http://www.digikey.com/
--
David Cary
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